Arthur Santos, PhD

O&G Emissions Scientist · Co-Founder & CPO, TetraSoft · Fort Collins, CO | Start exploring Atlas now for free, our O&G data intelligence platform ↓

[Arthur Santos, PhD @ArthurTetraSoft]

the Federal Register notice, if you want it
https://t.co/Xz57BvDZJ3

[Arthur Santos, PhD @ArthurTetraSoft]

Flare pilot flame and alarm requirements now start Jan. 22, 2027. Same day as the super emitter program and state plan submittals.

One day is carrying a lot of the rule.

[Arthur Santos, PhD @ArthurTetraSoft]

the Nature study, if you want to check it
https://t.co/VKoZPTtKsK

[Arthur Santos, PhD @ArthurTetraSoft]

One industry, two answers. About a million aerial site measurements across six US regions put the weighted-average gas loss at 2.43%, roughly three times the national inventory estimate.

In 7 of 15 surveys, 0.04-1.66% of well sites produced 50-77% of well site emissions.

[Arthur Santos, PhD @ArthurTetraSoft]

In the GIF a bundle arrives without one composition file. You see exactly which site is affected before anything runs, then supply the file or go ahead

[Arthur Santos, PhD @ArthurTetraSoft]

Build log #4: study bundles

A methane study passes through several hands: the engineer who builds it, the analyst who runs it, the reviewer who checks it. Files get lost on the way, and a missing gas composition only shows up when a run fails

[Arthur Santos, PhD @ArthurTetraSoft]

A MAES study now exports as one bundle and imports anywhere. On import, the wizard lists every gas composition and factor file the study needs, flags what's missing and shows which sites use it

[Arthur Santos, PhD @ArthurTetraSoft]

@___aprilnicole_ West Texas will do that to you. How long have you been out there?

[Arthur Santos, PhD @ArthurTetraSoft]

@KP4Rukiga First oil this financial year is close. Do you know yet who'll be picked to market it?

[Arthur Santos, PhD @ArthurTetraSoft]

@Markcb1u @GovPressOffice @grok CalGEM was DOGGR before, so older state data and filings may still sit under that name

[Arthur Santos, PhD @ArthurTetraSoft]

@DevinFitzEXP247 Ha, what do you usually see it standing in for in those deals?

[Arthur Santos, PhD @ArthurTetraSoft]

EU methane law builds on OGMP 2.0, the UN's voluntary reporting framework. Gold Standard status needs Level 4/5 reporting for operated assets within three years. Level 4 means source-level estimates from your own equipment; Level 5 adds a whole-site measurement.

[Arthur Santos, PhD @ArthurTetraSoft]

The extension on the first OOOOb annual report is a gift to teams whose data is already in order and a trap for everyone else. It feels like next year's problem right up until it lands the Monday after Thanksgiving.

[Arthur Santos, PhD @ArthurTetraSoft]

That's what makes scenario testing practical. What if every tank were inspected quarterly? Set it across the portfolio, run it, and see what changes

[Arthur Santos, PhD @ArthurTetraSoft]

Build log #3: editing many sites at once

Real studies aren't one site. A consultant modeling an operator's field can have dozens of pads with the same equipment, and changing one parameter used to mean opening every site

[Arthur Santos, PhD @ArthurTetraSoft]

In the MAES Project Manager you select the sites, pick the equipment and set the value once. In the GIF we change the tank thief hatch repair time and the inspection interval on three sites in one step

[Arthur Santos, PhD @ArthurTetraSoft]

@cvrdnoil Tier 1 CAT that probably just needs injectors is the most honest frac pump listing I've read. Is the DEP cookoff a good crowd?

[Arthur Santos, PhD @ArthurTetraSoft]

@Rufinov2 @theDefiantworld @brunopallaire @hamad325 @aminmusic Six weeks to get it back on, nice work. What's the Upper Mississippian making so far?

[Arthur Santos, PhD @ArthurTetraSoft]

@OluVerheijen Policy that changes a decision is the right test. Which reform from the speech do you think will move first?

[Arthur Santos, PhD @ArthurTetraSoft]

@joel_joelayala1 Same word meaning different things on different crews is a real headache. Which one do you hear most mixed up?